# Extension Shaft for Diamond Core Bits Dedra HW4003 — 30 cm

**URL:** https://aio.lv/en/product--dedra-hw4003--10712936
**Data updated:** 2026-03-07 17:59 (EET)
**Category:** Power Tools Accessories
**Manufacturer:** Dedra
**Manufacturer code:** HW4003
**EAN:** 5902628816832
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 57.99 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 47.93 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dedra-hw4003--10712936

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 31.07.2026 | free |
| Pickup points | 05.08.2026 | 1.89 EUR |
| Courier delivery to door | 05.08.2026 | 4.99 EUR |

## Summary description

Extension shaft for diamond core bits by Dedra, model HW4003, length 30 cm. Designed to extend reach when drilling with diamond core bits in masonry, concrete and other hard materials. Allows use with rotary drills and core bit adapters to access deeper or hard-to-reach holes while maintaining stable connection and alignment.

## Long description

Extension Shaft for Diamond Core Bits Dedra HW4003 — 30 cm extends the working reach of diamond core bits when drilling into masonry, concrete and other hard materials. It is designed to provide a stable connection between a rotary drill or core bit adapter and the diamond core bit, allowing deeper or hard-to-reach holes without changing the basic drilling setup.
Advantages
The 30 cm extension shaft offers increased reach while maintaining alignment and torque transfer between the drill and the diamond core bit. Its construction reduces lateral play and helps keep the core bit centered during rotation, which improves cut accuracy and reduces wear on the cutting edge. The shaft is compatible with common rotary drills and core bit adapters, enabling flexible use across a range of drilling tasks. The simple cylindrical form factor facilitates quick mounting and removal, supporting efficient workflow on job sites.
Suitable for
Drilling deep or recessed holes in concrete and reinforced concrete
Creating openings in masonry, brick and stone where extra reach is needed
Renovation and retrofit work requiring access behind fixtures or within confined spaces
Use with rotary drills and compatible core bit adapters for plumbing, electrical and HVAC installations
Key specifications
Length: 30 cm
Intended use: extension for diamond core bits
Compatibility: designed to work with standard rotary drills and core bit adapters
Application materials: masonry, concrete, brick, stone and similar hard materials
How to use
Mount the extension shaft between the rotary drill (or adapter) and the diamond core bit, ensuring secure engagement of the connection points. Confirm that the drill and extension are tightened according to the drill manufacturer’s instructions and check alignment before starting. Begin drilling at low speed to establish the cutting line, then increase speed and apply steady, controlled pressure appropriate to the material. Periodically withdraw the core bit to clear debris and cool the cutting surface as needed.
Usage recommendations
Use appropriate personal protective equipment, such as eye protection, gloves and dust mask. For reinforced concrete or deep drilling, use water cooling where applicable to reduce dust and heat, and avoid excessive lateral forces that can bend the shaft or damage the core bit.

## FAQ

### How much does the Extension Shaft Dedra HW4003 — 30 cm cost, and is it available for purchase?

The price is 57.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 40 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 31.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Dedra products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Dedra service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/10712936/59775110_large.webp